SDO HMI 2014-01-12 23:00:24 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.94 | 16.40 | 3.05 | 8.41 | -13.05 | 44.31 | 12.31 | 233.51 | 0.2598 | -642.4 | -548.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-12 23:00:24 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.36 | 0.00 | 0.70 | -11.49 | 46.39 | 14.39 | 242.47 | 0.2760 | 703.0 | 545.9 | |
| 0.00 | 0.25 | 0.00 | 0.13 | -12.88 | 44.94 | 12.94 | 235.40 | 0.2665 | -649.0 | -470.3 | |
| 0.00 | 1.87 | 0.00 | 0.96 | -13.28 | 44.31 | 12.31 | 232.85 | 0.2616 | -673.0 | -590.4 | |
| 1.44 | 5.44 | 0.74 | 2.79 | -13.10 | 44.23 | 12.24 | 233.25 | 0.2589 | -1080.8 | -800.4 | |
| 4.50 | 7.48 | 2.31 | 3.83 | -13.25 | 43.96 | 11.97 | 232.17 | 0.2568 | -1068.4 | -694.1 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |